on a diet

1.

You're skinny enough without going on a diet!

你不必节食就已经够瘦的了！

2.

The doctor says I've got to go on a diet.

医生说我得节食。

3.

He's thinned down a lot since he went on a diet.

他自从节制饮食以来已经瘦了不少。

4.

I'm supposed to go on a diet.

我应该节食。

5.

I think you should go on a diet.

我看你应该节食。

6.

The fat boy went on a diet to get rid of his excess weight.

这个胖男孩节制饮食以减轻过量的体重。

7.

He is on a diet to reduce some weight.

他正在节食以减轻体重。

8.

I'm on a diet.

我正在节食。